My resources now cover the whole of OCR AS Chemistry. Each download includes a list of all available lessons and bundles. This complete year 12 resource on acid-base titrations includes the practical ...

A well-established technique, acid-base titration is an analytical method used to determine the concentration of an unknown acid or base. In practice, it involves adding a solution of known strength ...

An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...

I’m sure many of you reading this can remember your first acid-base titrations in chemistry class—the thrill of watching the pH indicator change color, and the fear of opening the stopper too much and ...

ACE OF BASE A paper-based device titrates basic solutions of NaOH. The numbers at the end of each spoke indicate the concentrations of potassium hydrogen phthalate, which neutralizes NaOH, in the ...

The students use litmus paper to determine the acidity of different substances and discuss the Bronsted-Lowry Model, the Arrhenius Model, and the Lewis Model. They measure the pH of different ...